Mechanical refrigeration



Dec. 21 1926. 1,611,299

M. H. SPREEN MECHANI CAL REFRIGERATION Filed March 8, 1926 QWWWPWW awwwlwww Maxwell H. Sprewz [222%22 doz- Patented Dec. 21, 1926.

UNITED STATES 1,611,290 PATENT OFFICE.

-MAXWELL H. srnEnN, or DETROIT,- MICHIGAN.

MECHANICAL REFRIGERATION? Application filed March 8, 1926. Serial 110.231104.

Myinvention relates to mechanical refrig eration, 'and is particularly applicable to mechanical refrigeration designed for cooling refrigerator cabinets of the household or store type, and the principal object of my invention is to provide a new and improved brine tank particularly adaptedfor use in such householdand store refrigeration units, and to provide the increased contact surface between' the brine tank and the circulatory air desirable in all such installations and particularly required in the larger installations where the surface of the brine tank reaches a relatively low ratio tothe cubic contents of the tank. y

In the drawings accompanying this specification and forming a part of this application I have shown, for purposes of illustration, one form which my invention may as-,

sume. In these drawings 1' Figure 1'is a front elevation, with certain parts. removed, of a refrigerator cabinet showing this illustrative form of my invention, I v

Figure 2 is. a horizontalsectionthrough the brine tank taken on the line"2' 2- 'of Figure 1 or Figure 3, while 1' Figure 3 is a vertical section through the brine tank taken onthe line 3+3 of Figure 2. v i

In the drawings I have shown a refrigerator cabinet 11 comprising a cooling coinpartment 12, a supplemental refrigerated the cooling compartment 12 by means of a passage 17, all to permit flow of the c1rcu-- latory air from the cooling compartment 12 through the passage 15 into the supplemental refrigerated compartment" 13, through the passage 12 into the main refrigerated compartment 14, and through the passage 17 back into the cooling compartment 12. i

Disposedwithin this cooling compartment 12 is a brine tank 18 comprising side walls the cooling effect of the brine the refrigerator cabinet 11.

19, afront wall '20, a rear wall 21, a top 22,v

and "a, bottom 23,'and comprising also a pluflrality of vertically ali'ned tubes 24 extending between the' front wall-20 and the rear wall 21 and providing recesses 25 for the reception of trays 26 suitable for the production of artificial ice. Also positioned-in the b rine tank 11 is a suitable expansion unit 27 shown herein as comprising three co1ls 28 connected in series between'the expansion valve 29 and'the outlet30 and each encircling one of the tubes 24. i

' In addition, the brine tank 18 herein shown comprises means to increase the area of contact between the brine and the circulatory air, this means being herein shown as two. passages 31 extending vertically on either side of the tubes 24between the top wall 22 and bottom 23 of the brine tank 18.

From the above description it will be ob-' vious to those skilled in theiart that the brine tank herein shown comprises passages extending-in the general direction of flow of the circulatory air passing the brine tank '18, and arranged to permit the passage therethrough of a portion of the circulatory air to thus very greatly increase the area, of contactbetween the brine within the brine tank 18 and the circulatory air transmitting throughout ,Under these circumstances it will be obvious to-those skilled in the art that I have provided a new and improved brine tank particularly suitable for use in household and store installations.- i I 'At the same time willalso be obvious to. those skilled in the art that the particular embgdiment of my invention" herein shown may be variously changed. and modified without departing from the spirit of my invention or sacrificing the advantages there-.

of. It will therefore be understood that the disclosure herein is illustrative only and,

that my invention'is not limited thereto.

I claim:

1., In combination, a refrigerator cabinet, andia brine tank located-therein for cooling sa d cabinet by air convection. so positione in said cabinet that the t-cpoling air flows downwardly in passingsaid brine tank, prose i vided with at least one recess extending into said brine tank from a lateral wall thereof and for the reception of a receptacle for the production of artificial ice, and provided 'also' with at least one passage independent of such recesses and extending through said brine tank in the general direction of the convection flow of the air in'passing said brine tank, and expansion coil means 1ocat-.

ed Within said brine tank in closer proximity to said recess than to said passage.

2.121 combination, a refrigerator cabinet, and a brine tank located therein for cooling said cabinet by air convection, so positioned in said cabinet that the cooling air flows downwardly in passing said brine tank, provided'with at least one recess extending into said brine tank from a lateral WalT. thereof and for the reception of a receptacle for the production of artificial ice, and provided also ,with two passages independent of such recesses and extending through said brine tank in the general direction of the convection flow ofthe air in passing said brine tank and disposed one on each side of such recesses, and expansion coil means located within said brine tank in closer proximity to said recess than to said passages.

In testimony whereof I hereunto afiix my signature.

MAXVELL H. SPREEN. 

